Integrated cigarette filter

ABSTRACT

An integrated cigarette filter that can light up, cut and put out a cigarette, hold ash and butts and filter smoke. It comprises upper and lower casings and is characterized by a smoke-collecting hood arranged on the upper casing and an inlet ventilator furnished inside the hood. The hood is snapped onto the upper casing in a detachable manner. The inlet ventilator is fixed to the upper casing with screws and snap-fasteners. The smoking device is inside the upper casing, while the purification device is inside the lower casing. There is a trimming between the upper and lower casings, and the two casings are connected with snap-fasteners. The device can eliminate passive smoking from the source, and directly purify harmful gases and particles in mainstream and sidestream smoke during use, without causing adverse effects or damage to people around smokers.

TECHNICAL FIELD

The invention relates to the technical field of cigarette filters, in particular to an integrated cigarette filter that can light up, cut and put out a cigarette, hold ash and butts and filter smoke.

INTRODUCTION/BACKGROUND

Cigarettes are made from tobacco. In addition to dry tobacco, the main component contained in cigarettes, many others are chemically added. Smoke that comes from a burning cigarette contains about 4,000 chemicals, most of which are toxic substances, metamorphosis-inducing materials and carcinogens. Tar and nicotine are especially harmful. The sponge filter tip that a cigarette itself comes with has very limited ability to filter out toxic substances. Therefore, long-term smoking will seriously damage the health of smokers.

Second-hand smoke (SHS) is also known as passive smoking or environmental tobacco smoking (ETS). It's a mixture of smoke that comes from the burning of cigarettes or other tobacco products and a smoker exhales from the lungs. That is, passive smoking contains the mainstream smoke that a smoker exhales but also the sidestream smoke that comes from a cigarette or cigar or a tobacco pipe. Passive smoking contains over 4,000 hazardous chemicals, such as tar, ammonia, nicotine, aerosols, ultra-fine aerosols (PM2.5) and polonium-210, and dozens of carcinogens. As reported by the World Health Organization (W. H. O.), smoking is harmful to human beings in many ways, mainly causing asthma, pneumonia, lung cancer, hypertension, cardiopathy and genital hypoplasia, etc. Passive smoking is no less harmful to passive smokers than to active smokers. In particular, the harm is especially serious to children. In passive smoking, many compounds are released in sidestream smoke at the higher rate than in mainstream smoke, for example, nicotine twofold, tar threefold, carbonic oxide fivefold, and carcinogens fifty-fold. The smoke that a smoker exhales also contains a lot of fine particles (PM2.5), which heavily pollute the indoor air in smoking space. Investigations show that, passive smoking is the main source of PM2.5 in indoor air in smoking places. Passive smoking contributes 90 percent of PM2.5 in an indoor environment where people smoke. As recommended by the World Health Organization (W. H. O.), the annual average concentration of PM2.5 in the air should not exceed 25 micrograms per square meter, 14 times as that in many restaurants, and 19 and 10 times as those in bars and Internet cafes, respectively.

To minimize harmful gases and particulate matters, air filters have been installed in some public places. Some of the air filters are passive with built-in filters for air purification, and the others are active for harmful gases, mainly using silver ion, negative ion, low temperature plasma, photo-catalyst, plasma cluster and other active sterilization techniques. At present, a combination of active and passive sterilization techniques is mainly used. The smoke that a smoker exhales pervades a large space. If any, it may increase the burden on the air purifier indoors. Furthermore, It takes a certain time to filter the secondhand smoke. During the time, the secondhand smoke pollution is always there, and people in such environment are inevitably poisoned by second-hand smoke. And in many public places in China, less air purifiers are installed due to the far higher cost; and, despite the smoking ban, smokers can't be completely eradicated. Other peer products give much attention to the indoor air purification, but they pay little attention to passive smoking. At present, there are some ashtray purifiers and other similar products on the market, however, they can only solve the emission of mainstream or sidestream smoke, instead of getting rid of passive smoking from the source.

SUMMARY

The technical problem to be solved by the invention is, on account of the above defects of prior art, an integrated cigarette filter that can light up, cut and put out a cigarette, hold ash and butts and filter smoke is provided for completely eradicating passive smoking from the source. While being used, it directly purifies the harmful gases and particles in the mainstream and sidestream smoke, without causing harm to the people around the smoker. The invention is very convenient and environmentally friendly, integrating a cigarette lighter, an ashtray (holding ash and butts from cigarettes and cigars) and a smoke filter. It automatically lights up a cigarette, cuts off the cigarette butt at the end of smoking, collects ash and the butt and filters the smoke produced throughout the smoking process.

To achieve the above purposes, the integrated cigarette filter, consisting of the upper and lower casings, is characterized by: a smoke-collecting hood is arranged above the upper casing and the inlet ventilator inside the smoke-collecting hood. The hood is snapped onto the upper casing in a detachable manner. The inlet ventilator is fixed to the upper casing with screws and snap-fasteners. The smoking device is inside the upper casing, while the purification device is inside the lower casing. There is a trimming between the upper and lower casings. The two casings are connected with snap-fasteners.

What is more, the smoking device incorporates an ashtray, as well as a cigarette holder above, and a cigarette lighter respectively inside, the ashtray.

The cigarette holder comprises the first motor and its rotary screw, as well as the gear and blade. The rotary screw is furnished with guide gear bracket, guide track bracket and guide track bracket baffle. The guide gear bracket and the guide track bracket are screwed to the upper casing. The guide gear bracket baffle is furnished below the guide gear bracket. The guide track bracket is provided with the guiding axle and inlet baffle. The second printed circuit board is arranged on the guide gear bracket, and perpendicularly connected to the first printed circuit board, which has a range sensor. The second printed circuit board has a detect switch, a filter tip recognition module and a temperature sensor.

The cigarette lighter includes: the second motor and its rotary screw, and the guide bracket at the bottom of the second motor. The guide bracket is provided with a nut sleeve and a guide bracket baffle. The guide bracket baffle is equipped with the arc discharge bracket clamping device. The guide bracket is with a high voltage pack for an arc cigarette lighter.

The ashtray is screwed to the upper casing, and its upper end is fixed to the guide track bracket. The bottom of the guide bracket is fixed to the ashtray, and the ashtray baffle side is screwed to the ashtray, and the other side is fastened to the ashtray.

Also, the purification device comprises: a fan and a filter unit and a negative ion generator respectively above and below it, the battery, and the third printed circuit board and the switch on it. The filter unit is furnished inside the sealing mechanism. The fan is below the sealing mechanism and screwed onto the lower casing. The trimming is provided on the sealing mechanism, and fastened to the lower casing. The top and bottom of the negative ion generator and those of the battery are screwed to the fan, and to the third printed circuit board that is screwed to the bottom of the lower casing. The part of the lower casing that corresponds to the fan outlet is equipped with the air outlet, and the top of the negative ion generator is with the vent.

Further, the guide track bracket baffle is provided with a small hole.

The filter unit adopts a double-layer filter of HEPA and activated carbon.

Further, the power connector is also provided, and it comprises the first & 2 wire connectors respectively fastened to the upper and lower casings. The electric wire and the USB cable run through the first & 2 wire connectors, respectively.

The upper and lower casings are equipped with the male buckle and the female thread, respectively. The male buckle (connector portion) is fastened to female thread (connector portion).

Also, the lower casing is provided with an on/off switch or button.

Using the above technical scheme, the invention has the following beneficial effects compared with the prior art:

The invention integrating a cigarette lighter, an ashtray and a smoke filter automatically pushes and pulls, and lights up, a cigarette, and cuts off the cigarette butt at the end of smoking, collects ash and the butt and filters the smoke produced throughout the smoking process.

The invention can eliminate passive smoking from the source, and directly purify harmful gases and particles in the mainstream and sidestream smoke during use, without causing adverse effects or damages to people around smokers.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a sectional view of the integrated cigarette filter.

FIG. 2 shows a perspective view of the integrated cigarette filter.

FIG. 3 shows a local schematic diagram of the integrated cigarette filter with a cigarette inserted.

FIG. 4 shows a local structural diagram of the integrated cigarette filter with a cigarette inserted (without the ashtray body installed).

FIG. 5 shows a local structural diagram of the integrated cigarette filter with a cigarette inserted (with installing the ashtray body).

FIG. 6 shows a top view of the integrated cigarette filter (along the guide gear bracket).

FIG. 7 shows a top view of the integrated cigarette filter (along the guide gear bracket).

FIG. 8 shows a top view of the integrated cigarette filter (along the guide gear bracket baffle).

FIG. 9 shows a top view of the integrated cigarette filter.

FIG. 10 shows a sectional view of the connection part of the upper casing of the integrated cigarette filter.

FIG. 11 shows a sectional view of the connection part of the lower casing of the integrated cigarette filter.

FIG. 12 shows a schematic diagram of the ashtray body of the integrated cigarette filter.

FIG. 13 shows a schematic diagram of the connecting device of the integrated cigarette filter.

In the figure, all the parts are indicated as follows: 1—cigarette, 2—range sensor, 3—detect switch, 4—filter tip recognition module, 5—first printed circuit board, 6—second printed circuit board, 7—temperature sensor, 8—guide gear bracket, 9—guide gear bracket baffle, 10—blade, 11—motor rotary screw, 12—guide track bracket baffle, 13—guide track bracket, 14—inlet baffle, 15—first motor, 16—second motor, 17—guide bracket, 18—screw, 19—a high voltage pack for an arc cigarette lighter, 20—nut sleeve, 21—arc discharge bracket clamping device, 22—guide bracket baffle, 23—guiding axle, 24—gear, 25—ashtray, 2501—ashtray body bracket, 2502—ashtray vent, 2503—slot, 2504—opening, 2505—recessed part of ashtray, 2506—heat shield, 26—ashtray baffle, 27—first wire connector, 28—filter unit, 29—fan, 30—negative ion generator, 31—battery, 32—third printed circuit board, 33—second wire connector, 34—inlet ventilator, 35—smoke-collecting hood, 36—air outlet, 37—vent, 38—electric wire, 39—USB cable, 40—female thread, 41—male buckle, 43—upper casing, 44—lower casing, 45—trimming, 46—sealing mechanism, 47—switch and 48—button.

DETAILED DESCRIPTION

As used herein, the following terms and variations thereof have the meanings given below, unless a different meaning is clearly intended by the context in which such term is used. The terms “above,” “below,” “between,” and other terms of relative position or orientation as used herein refer to a relative position of one component with respect to another component, and do not refer to absolute positions or orientations. Note that, the words used in the description of the invention, inclusive of “on”, “under” “above”, “below”, “perpendicularly”, “upper end”, “left”, “right”, “top”, “bottom”, “left side”, “right side” and some other words indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the figures attached, and they are only for describing the invention and simplifying the description, and, unless otherwise stated, the words have no particular meanings, and they are not intended to indicate or imply that the referred device or element must be constructed or operated in a particular orientation, therefore, they cannot be construed as a limitation on the present invention. The term “comprise” and variations of the term, such as “comprising” and “comprises,” are not intended to exclude other additives, components, integers or steps. The terms “a,” “an,” and “the” and similar referents used herein are to be construed to cover both the singular and the plural unless their usage in context indicates otherwise. Ranges which are described as being “between” two values include the indicated values.

Note that, without conflict, embodiments in this application, and characteristics in embodiments, can fit well each other. The present invention is described in detail by reference to the attached figures and in combination with embodiments. In combination with the figures attached to the embodiments of the invention, the technical scheme in the embodiments of the invention is clearly and completely described. Obviously, the described embodiments are merely part of, rather than all, embodiments of the present invention. The following description of at least one exemplary embodiment is in fact merely illustrative, and in no way constitute any limitation on the invention or its application or use. Based on the embodiments of the invention, all other embodiments obtained by the persons skilled in the art without making creative labor fall within the scope of the protection of the invention.

As shown in FIG. 1-9, to achieve the above purposes, the invention provides an integrated cigarette filter that can light up, cut and put out a cigarette, hold ash and butts and filter smoke, which consists of the upper and lower casings (43 & 44) and is characterized by: The smoke-collecting hood (35) and the inlet ventilator (34) inside the smoke-collecting hood (35) are arranged above the upper casing (43). The smoke-collecting hood (35) is snapped onto the upper casing (43) in a detachable manner. The inlet ventilator (34) is fixed to the upper casing (43) with screws and snap-fasteners. The smoking device is inside the upper casing (43). The lower casing (44) is equipped with purification device inside. The trimming 46 is provided between the upper and lower casings (43 & 44), and the upper and lower casings (43 & 44) are connected with snap-fasteners, having a good sealing effect.

Optimally, the smoking device consists of the ashtray (25), the cigarette holder arranged above the ashtray (25) and the cigarette lighter inside the ashtray (25).

The cigarette holder comprises: the first motor (15) and its rotary screw (11), the gear (24) and the blade (10). The rotary screw (11) is furnished with the guide gear bracket (8), the guide track bracket (13). The guide track bracket baffle (12), the guide gear bracket (8) and the guide track bracket (13) are screwed to the upper casing (43). the guide gear bracket baffle (9) that can block cigarette ash or dust from the upper casing (43) is provided below the guide gear bracket (8). the guide track bracket (13) is equipped with the guiding axle (23) and the inlet baffle (14) that can block the backward flow of cigarette ash. The guide track bracket baffle (12) is equipped with a small hole designed for providing oxygen for a lit cigarette. Also, the guide track bracket baffle 12 blocks cigarette ash or dust from the upper casing (43). The guide gear bracket (8) is equipped with the second printed circuit board (6) that is perpendicularly connected to the first printed circuit board (5). The first printed circuit board 5 is equipped with the biometrics-based range sensor (2) (PS, the model of the biometrics-based range sensor is EM30718). The second printed circuit board (6) is equipped with the detect switch (3) (the model of the detect switch is K5-1658UN-01). The filter tip recognition module (4) and the temperature sensor (7)(the model of the temperature sensor is CMF02103F3380FT). The filter tip recognition module (4) is an ambient light sensor (ALS, the model of the ambient light sensor is ALS-PDIC17-TR8). When being inserted into the product, the cigarette (1) touches the detect switch (3), and the filter tip recognition module (4) automatically scans the color of the cigarette (1)(by distinguishing the flammable part of the cigarette and the filter tip). The first motor (15) (the model of the first motor is GM10-M10VA) drives the rotary screw (11), the gear (24) and the blade (10). Guided by the guide gear bracket (8), the guide track bracket (13) and the guiding axle (23), the rotary screw (11), the guide gear bracket baffle (9) and the guide track bracket baffle (12) rotate by track, pushing and opening the inlet baffle (14), and allowing the cigarette (1) being inserted and held smoothly.

The cigarette lighter includes: the second motor 16 (the model of second motor is GM10-N10VA) and its rotary screw 18, and the guide bracket (17) on the bottom of the second motor 16. The guide bracket (17) is concaved to the left. The guide bracket (17) is equipped with the nut sleeve 20 and the guide bracket baffle 22 that blocks the backward flow of cigarette ash. The guide bracket baffle 22 is equipped with the clamping device (21) for the arc discharge bracket, the guide bracket (17) is also equipped with the high voltage pack (19)(the model of the high voltage pack is TW-216) for arc cigarette lighter. The cigarette lighter is inside the ashtray (25), featured with compact structure and efficient use of space. The cigarette (1) after being inserted touches the clamping device (21) for the arc discharge bracket. The clamping device (21) for the arc discharge bracket blocks and clamps the cigarette, and pushes down or pull up the cigarette. The second motor 16 runs, driving the screw 18 to rotate. Guided by the guide bracket (17), the nut sleeve 20 pulls or pushes the connection between the filter tip (upper end) of the cigarette (1) and the flammable part up or down to a same level as the blade (10). The guide bracket baffle 22 moves by track. The first motor (15) drives the rotary screw (11) and the gear (24) to rotate. Guided by the guide gear bracket (8), the guide track bracket (13) and the guiding axle (23), the guide gear bracket baffle (9) and the guide track bracket baffle (12) rotate by track, pushing the inlet baffle (14) to clamp the cigarette (1). When the user's mouth is close to the filter tip and ready to smoke, the biometrics-based range sensor (PS) 2 detects that an instruction is sent to the high voltage pack (19) for arc cigarette lighter after the user's mouth approaches, and the arc line outlet of the high voltage pack (19) for arc cigarette lighter on the clamping device (21) for the arc discharge bracket puts the arc to the cigarette (1) for ignition. After the cigarette (1) is lit up, the cigarette lighter loosens the cigarette (1) and runs down, leaving the cigarette (1) to the bottom of the guide bracket (17). After the temperature sensor (7) detects that the cigarette (1) burns close to the filter tip, an instruction is sent to the first motor (15) to drive the rotary screw (11), the gear (24) and the blade (10) to operate. Guided by the guide gear bracket (8), the guide track bracket (13) and the guiding axle (23), the rotary screw (11) drives the blade (10) to cut off the cigarette (1). The guide gear bracket baffle (9) and the guide track bracket baffle (12) rotate by track. Under the elastic force of its rotary screw spring, the inlet baffle (14) loosens the cigarette (1). After cutting the cigarette (1), the first motor (15) drives the rotary screw (11), the gear (24) and the blade (10) to operate. The guide gear bracket (8), the guide track bracket (13), the guiding axle (23), the guide gear bracket baffle (9) and the guide track bracket baffle (12) return by track. The rotary screw (11) drives the ashtray baffle (26) to rotate and snap, closing the cigarette ash outlet on the bottom of the ashtray (25), lighting up, cutting off and putting out the cigarette. Specifically, the mechanical stroke and return of the first & 2 motors (15 & 16) is based on the operating current and resistance. For example, with the normal stroke, the current consumed is 0.5 A at the speed of 300 and at the voltage of 5V. however, when the current really consumed is 0.0 A, it indicates that the motors require returning by track in n a reverse manner after reaching the end of the stroke.

The ashtray (25) is screwed to the upper casing (43), and its upper is fixed to the guide track bracket (13). The bottom of the guide bracket (17) is fixed to the ashtray (25), the side of the ashtray baffle (26) is screwed to the ashtray (25), and the other side is screwed to the ashtray (25), thereby conveniently cleaning cigarette ash from the ashtray.

Preferably, the purification device comprises: the fan (29), and the filter unit (28) and the negative ion generator (30) above and below the fan (29), the third printed circuit board (32), and the Battery 31 (battery model 3040) and power switch 47 for power supply on the third printed circuit board (32). The switch (47) is used to control cigarette cutting. The sealing mechanism (46) is provided inside the filter unit (28). The fan (29) below the sealing mechanism (46) below is screwed to the lower casing (44). The sealing mechanism (46) is equipped with the trimming (45). The trimming (45) is fastened to the lower casing (44), tightly holding the sealing mechanism (46), and ensuring the pressure and air-tightness of fan (29). The negative ion generator (30) is securely screwed to the fan (29) and the third printed circuit board (32). The third printed circuit board (32) is screwed to the bottom of the lower casing (44). The position of the lower casing (44) that corresponds to the outlet of the fan (29) is equipped with the air outlet (36), letting out the filtered air from the vent (37) at the top of the negative ion generator (30)(not labeled in the figure). Under the role of the negative ion produced by the negative ion generator (30), the further filtered air is vented from the vent (37) and the air outlet (36) of the fan (29). The filter unit (28) adopts a double-layer filter of HEPA and activated carbon. The HEPA filter gauze is the most effective filter for pollutants such as smoke, dust and germ, while the activated carbon filter gauze is strongly absorptive. Under the suction generated by the fan (29), the mainstream smoke spit out by the user and the sidestream smoke produced by the self-burning of cigarette run into the filter layer of the filter unit (28) for filtration, and they are further filtered under the action of the negative ion produced by the negative ion generator (30) (the model of the negative ion generator is XHJ-D03FA). Finally, the filtered air is vented out from the fan (29) the air outlet, without causing adverse effects or damages to people around the smoker.

Whether to replace the filter gauze inside the filter unit (28) is determined by the current consumed at the required voltage at different speed of the fan (29)(for example, when the current consumed at the voltage of 12V and at the speed of 6000 is 0.9 A, and the current really consumed is 0.8 A, it's required to replace the filter gauze).

Preferably as FIG. 13, the power connector is also provided, and it comprises: the first wire connector (27) fastened to the upper casing (43) and the second wire connector (33) fastened to the lower casing (44). The electric wire (38) with a diameter of 0.8 mm and the USB cable (39) run through the wire hole first & 2 wire connectors (27 & 33) and the power switch 47 (model of power switch: HANRONG K5-1658UN-01) on circuit board 32 is used to turn on or off the power supply of the smoke filter.

Preferably as FIG. 12, the ashtray (25) consists of the ashtray body bracket (2501) on the left side, the ashtray vent (2502) on the right side. The ashtray vent (2502) is equipped with the vent hole, with the purpose of providing sufficient oxygen for the full combustion of the cigarette. The ashtray (25) is stuck in several slots (2503) of the upper casing (43). The recessed part (2505) of ashtray is on the bottom of the ashtray (25), and furnished with several heat shields (2506). The heat shields (2506) can prevent the cigarette butts from falling onto the ashtray baffle (26) and play the roles of heat insulation and dissipation. That is, it can protect the filter unit below. The recessed part (2505) of ashtray is equipped with the ashtray baffle (26) that is used for taking out the cigarette ash. The structure is compact and reasonable. The ashtray body bracket (2501) below is equipped with the opening (2504), where the cigarette lighter is arranged. It a compact structure that makes full use of space.

Preferably, the cigarette (1) that is suitable for the cigarette filter is a thin or thick cigarette.

The total capacity of the ashtray (25) is calculated by the diameter and length of the cigarette used by the smoker (for example, a thin cigarettes produces 0.1 ash (while a thick cigarette has 0.2 ash). The total capacity of the ashtray is 1. Taking the cigarette (1) for an example, reset and start to count since the lower casing is previously opened for taking out the cigarette ash (every time the lower casing and the ashtray baffle are opened, reset and start to count)1−(0.1*n)−(0.1*n)−( . . . ), and start to count, thus obtaining the capacity), with the aims of determining and reminding of the remaining capacity of the ashtray (25).

Preferably as FIG. 10-11, the upper and lower casings (43 & 44) are equipped with the male buckle (41) and the female thread (44), respectively, and the male buckle (41) is fastened to the female thread.

Preferably, the lower casing (44) is also equipped with the button control (48) (the model of the button is k2-1109HW), which is used to control the opening and closing of the power switch (47). The button (48) is made of plastic cement so that the user can have a better comfortable feeling.

The working principle of the invention is as follows:

When the cigarette (1) is inserted into the product, the cigarette (1) touches the detect switch (3), and the filter tip recognition module (4) automatically scans the color of the cigarette (1)(distinguishing the flammable part from the filter tip). The first motor (15) drives the rotary screw (11), the gear (24) and the blade (10) to operate. Guided by the guide gear bracket (8), the guide track bracket (13) and the guiding axle (23), the rotary screw (11), the guide gear bracket baffle (9) and the guide track bracket baffle (12) rotate by track, pushing and opening the inlet baffle (14), and inserting and clamping the cigarette (1) smoothly. When the user's mouth approaches the filter tip for smoking, the biometrics-based range sensor (PS) 2 sends an instruction to the high voltage pack (19) for arc cigarette lighter after detecting that the user's mouth is approaching, and the arc line outlet of the high voltage pack (19) for arc cigarette lighter on the clamping device (21) for the arc discharge bracket puts an arc to ignite the cigarette (1). After ignition, the cigarette lighter loosens the cigarette (1), leaves from the cigarette (1), and runs down to the bottom of the guide bracket (17). After the cigarette (1) is lit, the temperature sensor (7) detects the cigarette (1) is burnt to the filter tip, and sends an instruction to the first motor (15) to drive the rotary screw (11), the gear (24) and the blade (10) to rotate. Guided by the guide gear bracket (8), the guide track bracket (13) and the guiding axle (23), the rotary screw (11) drives the blade (10) to cut off the cigarette (1). The guide gear bracket baffle (9) and the guide track bracket baffle (12) rotate by track. The inlet baffle (14) under the elastic force of the rotary screw spring loosens the cigarette (1). After the cigarette (1) is cut off, the first motor (15) drives the rotary screw (11), the gear (24) and the blade (10) to rotate. The guide gear bracket (8), the guide track bracket (13), the guiding axle (23), the guide gear bracket baffle (9), the guide track bracket baffle (12) return by track. The rotary screw (11) drives the ashtray baffle (26) to rotate and snap, closing the cigarette ash outlet on the bottom of the ashtray (25). The product can judge the burning time of the cigarette butt in ashtray from the duration from igniting the cigarette to cutting off the cigarette and the frequency of smoking. For example, when the user keeps smoking (without breaks), the allowable smoking duration is 60 s. However, the self-burning time is 180 s without smoking. That is, the smoking duration is 3 times shorter than the self-burning time. If the smoker smokes for one minute and inhales a puff of smoke from a cigarette every 20 seconds, and 3 seconds once, and n times totally, the self-burning time of the cigarette butt is obtained by the formula {60-(3*n)}*3−20*(n−1), to the continued operation of the fan the burning time of the cigarette butt, and ensuring that all the smoke can be fully filtered before the equipment stops working.

Using the above technical scheme, the invention has the following beneficial effects compared with the prior art:

The invention integrating a cigarette lighter, an ashtray and a smoke filter automatically lights up a cigarette, and cuts off the cigarette butt at the end of smoking, collects ash and the butt and filters the smoke produced throughout the smoking process.

The invention can eliminate passive smoking from the source, and directly purify harmful gases and particles in the mainstream and sidestream smoke during use, without causing adverse effects or damages to people around smokers.

The above contents are a further detailed description of the invention in combination with the specifically preferred embodiments, and it should not be supposed that the specific implementation of the invention are limited to the description. For the persons skilled in the technical field to which the invention belongs, some simple deduction or substitution can be made without being divorced from the conception of the invention, and shall fall within the protection scope of the invention.

The examples set forth herein are provided to illustrate certain concepts of the disclosure. The apparatus, devices, or components illustrated above may be configured to perform one or more of the methods, features, or steps described herein. Those of ordinary skill in the art will comprehend that these are merely illustrative in nature, and other examples may fall within the scope of the disclosure and the appended claims. Based on the teachings herein those skilled in the art should appreciate that an aspect disclosed herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, such an apparatus may be implemented or such a method may be practiced using other structure, functionality, or structure and functionality in addition to or other than one or more of the aspects set forth herein.

The example systems and components described herein may be configured differently than described. For example, elements may be added to, removed from, or rearranged compared to the disclosed example embodiments. Any reference to an element herein using a designation such as “first,” “second,” and so forth does not generally limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient method of distinguishing between two or more elements or instances of an element. 

What is claimed is:
 1. An integrated cigarette filter that can light up, cut and put out a cigarette, hold ash and butts and filter smoke, comprising: an upper casing and a lower casing, wherein a trimming is disposed between the upper casing and the lower casing and wherein the upper casing and the lower casing are connected with snap-fasteners; a smoke-collecting hood arranged on the upper casing, wherein the hood is detachably snapped onto the upper casing; an inlet ventilator furnished inside the hood, wherein the inlet ventilator is fixed to the upper casing with screws and snap-fasteners; a smoking device arranged inside the upper casing; and a purification device arranged inside the lower casing.
 2. The integrated cigarette filter according to claim 1, wherein the smoking device comprises an ashtray, a cigarette holder above the ashtray, and a cigarette lighter inside the ashtray.
 3. The integrated cigarette filter according to claim 2, wherein the cigarette holder comprises a first motor operably connected to a rotary screw, a gear, and a blade, wherein the rotary screw comprises: a guide gear bracket, the guide gear bracket further comprising a second printed circuit board arranged on the guide gear bracket and perpendicularly connected to a first printed circuit board having a range sensor, the second printed circuit board having a detect switch, a filter tip recognition module and a temperature sensor; a guide track bracket, the guide track bracket having a guiding axle and an inlet baffle; and a guide track bracket baffle, wherein the guide gear bracket baffle is disposed below the guide gear bracket wherein the guide gear bracket and the guide track bracket are screwed to the upper casing.
 4. The integrated cigarette filter according to claim 2, wherein the cigarette lighter comprises a second motor operably connected to a rotary screw and a guide bracket at the bottom of the second motor, wherein the guide bracket is provided with a nut sleeve and a guide bracket baffle, the guide bracket baffle comprising a high voltage pack and an arc discharge bracket clamping device.
 5. The integrated cigarette filter according to claim 2, wherein the ashtray is screwed to the upper casing, the ashtray having an upper end fixed to the guide track bracket, and wherein a bottom end of the guide bracket is fixed to the ashtray and wherein a first side of the ashtray baffle is screwed to the ashtray and a second side is fastened to the ashtray.
 6. The integrated cigarette filter according to claim 1, wherein the purification device comprises a fan, a filter unit above the fan and a negative ion generator below the fan and a battery, as well as a third printed circuit board having a switch, wherein: the filter unit is furnished inside the sealing mechanism; the fan is below the sealing mechanism and is screwed onto the lower casing; the trimming is provided on the sealing mechanism and is fastened to the lower casing; a top end of the negative ion generator and a top end of the battery are screwed to the fan, and a bottom end of the negative ion generator and a bottom end of the battery to the third printed circuit board are screwed to a bottom end of the lower casing.
 7. The integrated cigarette filter according to claim 6, wherein part of the lower casing that corresponds to an outlet of the fan comprises an air outlet, and wherein a top of the negative ion generator is comprises a vent.
 8. The integrated cigarette filter according to claim 3, wherein the guide track bracket baffle comprises a hole.
 9. The integrated cigarette filter according to claim 6, wherein the filter unit comprises a double-layer filter of HEPA and activated carbon.
 10. The integrated cigarette filter according to claim 1, further comprising a power connector, wherein the power connector comprises a first wire connector fastened to the upper casing and a second wire connector fastened to the lower casing, wherein an electric wire and a USB cable run through the first wire connector and the second wire connector.
 11. The integrated cigarette filter according to claim 1, wherein the upper casing comprises a male connector portion and the lower casing comprises a female connector portion, and wherein the male connector portion is reversibly attached to the female connector portion.
 12. The integrated cigarette filter according to claim 1, wherein the lower casing comprises a power button. 